When a money tree suddenly starts growing in the Enchanted Forest, Casper wishes for a money expert to give him advice. This causes Richie Rich to appear. Even though the money from the tree turns out to be fake, swamp monsters still kidnap Richie. So, Casper enlists Wendy's aid in rescuing him.
Casper appears in the real world, and follows Richie around just for fun. When Richie gets trapped in a cave, he realizes he'll be late for his boxing lesson. So, Casper impersonates Richie so nobody will worry, and later frees Richie from his predicament.